摘要
利用牛顿势隐函的对称性和等变Ljusternik -Schnirelmann理论及变分泛函在碰撞集上的值的下界估计和在临界点集上的值的上、下界估计 。
Using the equivariant Ljusternik-Schnirelmann theory,the estimates of the lower bound of functional values on collision sets and the estimates of the critical values for the variational functional,we obtain some results in the large concerning multiple geometrically distinct noncollinear periodic solutions of any fixed mininal period for a class of planar N body type problems. [WT5HZ]
出处
《重庆大学学报（自然科学版）》
CAS
CSCD
2000年第2期96-101,共6页
Journal of Chongqing University
基金
NationalNaturalScienceFoundation!( 198710 96)
关键词
极小周期
N体型问题
非共线周期解
存在性
N body type problems with fixed minimal period
geometrically distinct noncollinear periodic solutions
equivariant Ljusternik-Schnirelmann theory
symmetry
